/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.helpers.matchers;

import com.google.gson.JsonObject;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeDiagnosingMatcher;
import org.hisp.dhis.test.e2e.helpers.JsonParserUtils;
import org.json.JSONException;
import org.skyscreamer.jsonassert.JSONCompare;
import org.skyscreamer.jsonassert.JSONCompareMode;
import org.skyscreamer.jsonassert.JSONCompareResult;

/**
 * @author Gintare Vilkelyte <vilkelyte.gintare@gmail.com>
 */
public class MatchesJson extends TypeSafeDiagnosingMatcher<Object> {

  private final String expectedJSON;

  private final JSONCompareMode jsonCompareMode;

  private String mismatch;

  public MatchesJson(final String expectedJSON) {
    this.expectedJSON = expectedJSON;
    this.jsonCompareMode = JSONCompareMode.LENIENT;
    this.mismatch = "";
  }

  private static String toJSONString(final Object o) {
    return o instanceof JsonObject ? o.toString() : JsonParserUtils.toJsonObject(o).toString();
  }

  public static MatchesJson matchesJSON(final String expectedJSON) {
    return new MatchesJson(expectedJSON);
  }

  public static MatchesJson matchesJSON(final Object obj) {
    return new MatchesJson(toJSONString(obj));
  }

  @Override
  public void describeTo(Description description) {
    description.appendValue(mismatch);
  }

  @Override
  protected boolean matchesSafely(Object actual, Description mismatchDescription) {
    final String actualJSON = toJSONString(actual);
    try {
      JSONCompareResult result = JSONCompare.compareJSON(expectedJSON, actualJSON, jsonCompareMode);
      if (result.failed()) {
        mismatch = result.getMessage();
      }

      return result.passed();
    } catch (JSONException e) {
      return false;
    }
  }
}
